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It is shown that invariants and relativistically invariant laws ofconservation of physical quantities in Minkowski space follow from 4-tensors ofthe second rank, which are four-dimensional derivatives of 4-vectors, tensorproducts of 4-vectors and inner products of 4-tensors of the second rank. Twoforms of the system of equations of conservation laws for a number of physicalquantities in Minkowski space are obtained. The four-dimensional law ofconservation of energy-momentum combines the three-dimensional laws ofconservation of energy, momentum and angular momentum. The equations of thefour-dimensional laws of conservation of physical quantities in explicit orimplicit form contain the wave part Based on a system of four-dimensionalkinematic conservation equations, the reason for the stability of vortex ringsin liquids and gases is explained.

Invariants and conservation laws of physical quantities in Minkowski space